Device for actively simulating human body respiration

The utility model provides a device for actively simulating human body respiration and belongs to the field of a respiratory medicine physiological research. The device for actively simulating the human body respiration is structurally characterized in that a linear motor drives a connecting rod to push an air bag to conduct reciprocating motion, a pressure sensor and a flow sensor are arranged at the air port end of the air bag, the pressure sensor is connected with an air inlet of the flow sensor through a port hose, signal output ends of the flow sensor and the pressure sensor are connected with a motion control card, a driver of the linear motor is controlled through the motion control card, and the motion control card is connected with a computer through a communication interface. The pressure sensor and the flow sensor are used to convert physical quantity to a voltage signal, and the motion control card collects and displays data of the voltage signal in real time. A respiratory machine is comprehensively tested through setting of different parameters such as respiratory frequency, inspiration time and tidal volume, capacity utilization is improved, and good treatment effect is ensured. The device for actively simulating the human body respiration is tight in structure, convenient and simple to assemble and disassemble, little in abrasion, low in noise, high in speed, and high in accuracy.